PL42A:
Atlantic Ocean Variability in a Changing Climate: Observations, Modeling, and Theories II

Session ID#: 92614

Session Description:
By redistributing a large amount of heat and salt, the Atlantic Ocean significantly impacts regional and global climate over a wide range of time scales. In particular, the Atlantic has seen strong variations in the ocean heat and freshwater content over the past couple of decades, as well as in the uptake and storage of anthropogenic carbon, which has been attributed to changes in the ocean circulation, e.g., those related to the Atlantic Meridional Overturning Circulation (AMOC). However, the mechanisms through which the ocean circulation changes (e.g., in the mean state and variability) and impacts the climate system (e.g., via a series of modes of variability such as the Atlantic Multidecadal Variability, the North Atlantic Oscillation), as well as the feedback, remain poorly understood. This session invites submissions that advance our understanding of the Atlantic Ocean variability, the role it plays in the atmosphere–ocean–sea-ice system, and its impact on the future climate. It aims to bring together recent progress in understanding the circulation and climate variability in the Atlantic sector from paleoclimate, historical and future perspectives. Studies utilizing observational, modeling and/or theoretical frameworks are all welcome.
Co-Sponsor(s):
  • AI - Air-Sea Interactions
  • HE - High Latitude Environments
  • PC - Past, Present and Future Climate
Index Terms:

4504 Air/sea interactions [OCEANOGRAPHY: PHYSICAL]
4532 General circulation [OCEANOGRAPHY: PHYSICAL]
9325 Atlantic Ocean [GEOGRAPHIC LOCATION]
Primary Chair:  Feili Li, Duke University, Durham, NC, United States
Co-chairs:  Rohit Ghosh, Max Planck Institute for Meteorology, The Ocean in the Earth System, Hamburg, Germany, Laifang Li, Duke Univ-Earth & Ocean Sci, Durham, NC, United States and Dian Putrasahan, Max Planck Institute for Meteorology, Hamburg, Germany
Primary Liaison:  Feili Li, Duke University, Durham, NC, United States
Moderators:  Rohit Ghosh, Max Planck Institute for Meteorology, The Ocean in the Earth System, Hamburg, Germany and Dian Putrasahan, Max Planck Institute for Meteorology, Hamburg, Germany
Student Paper Review Liaisons:  Dian Putrasahan, Max Planck Institute for Meteorology, Hamburg, Germany and Rohit Ghosh, Max Planck Institute for Meteorology, The Ocean in the Earth System, Hamburg, Germany

Abstracts Submitted to this Session:

The Contribution of Mesoscale Ocean Dynamics to Atlantic Meridional Heat Transport (652810)
Andrew Spencer Delman, Jet Propulsion Laboratory, Pasadena, CA, United States and Tong Lee, JPL, Pasadena, CA, United States
Observed variability of the North Atlantic Current in the Rockall Trough, at the crossroad between the subpolar gyre and the Nordic Seas. (642875)
Loic Houpert1, Stuart A Cunningham2, Neil Fraser2, Clare Johnson2, Sam C Jones2, Ben I Moat1 and N. Penny Holliday1, (1)National Oceanography Centre, Southampton, United Kingdom, (2)Scottish Association for Marine Science, Oban, United Kingdom
The Gulf Stream path changes and their linkage to the abyssal circulation in the North Atlantic. (649146)
Rou Hu, University of Maryland Center for Environmental Science Horn Point Laboratory, Physical Oceanography, Cambridge, United States and Jian Zhao, University of Maryland Center for Environmental Science Horn Point Laboratory, Physical Oceanography, Cambridge, MD, United States
North-Atlantic Ocean Subtropical Gyre: New perspective and mechanisms of low-frequency Variability (645294)
Guillaume Maze, IFREMER, Laboratory for Ocean Physics and Satellite remote sensing, Plouzané, France, Kevin Balem, IFREMER, Laboratory for Ocean Physics and Satellite remote sensing, France and Thierry Penduff, Institut des Géosciences de l'Environnement, CNRS/Univ. Grenoble Alpes/G-INP/IRD, Grenoble, France
Mean state and seasonal to interannual variability of the Atlantic Subtropical Cells inferred from recent observations (640526)
Franz Philip Tuchen1, Joke F Lubbecke1, Sunke Schmidtko1, Rebecca Marie Hummels2, Claus W Boning1 and Peter Brandt2, (1)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (2)GEOMAR, Kiel, Germany
Observational exploration of the subtropical gyre of the South Atlantic (646086)
Kimberley Drouin, Duke University, Earth and Climate Science, Durham, NC, United States and Susan Lozier, Georgia Institute of Technology, Atlanta, United States
Simulated response of South Atlantic Subtropical Mode Water to air-sea processes (643776)
Piero Silveira Bernardo1, Olga T Sato1 and Andrea Taschetto2, (1)USP University of Sao Paulo, São Paulo, Brazil, (2)University of New South Wales, Sydney, NSW, Australia
Projected Change of The Southwest Atlantic Circulation (639072)
Vincent Combes, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States and Ricardo P Matano, Oregon State Univ, Corvallis, OR, United States